Tanzania Country Code

The country code for Tanzania is +255.

Calling code: +255
ISO code: TZ · TZA
Region: Africa

How to call Tanzania from the US

011+255+local number

011 is the US and Canadian exit code; from a mobile you can dial + instead, anywhere in the world. Numbers written locally in Tanzania start with a 0 — drop it when you dial in from abroad.

Example Tanzania numbers in international format, as published by the numbering-plan source.
Line type	Dial from abroad
Fixed line	+255 222345678
Mobile	+255 621234567

Calling out of Tanzania

Tanzania does not publish a single international access code: the prefix selects the carrier that will handle the call, so the digits depend on which one you use. Dialling + from a mobile avoids the choice.

Official name: United Republic of Tanzania.

Scope the Tanzania calling code and its dialing rules. Source datasets/country-codes (E.164 + ISO 3166) (ITU-T E.164 + ISO 3166, 2026-07 release) and libphonenumber PhoneNumberMetadata (Google) (libphonenumber master, 2026-08 snapshot). Updated 25 August 2026. Example numbers are the numbering plan's own published examples, not real subscriber lines.